Is CVE-2020-13765 in the CISA KEV catalog?

No. CVE-2020-13765 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-13765?

CVE-2020-13765 has a CVSS v3 base score of 5.6 (MEDIUM).

What is the EPSS score for CVE-2020-13765?

CVE-2020-13765 has an EPSS score of 2.41% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-13765?

Upgrade qemu on debian 11 to 1:4.2-1 or later. Fixes are available for 15 affected products.

CVE & CISA-KEV Catalog

CVE-2020-13765

MEDIUMEPSS 82th pctl

5.6

CVSS v3

NVD

Description

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

qemuDebian

Fixed in:1:4.2-1CVE-2020-13765

qemuUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-systemUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-aarch64Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

qemu-system-armUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-commonUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

qemu-system-mipsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-miscUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-ppcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-s390xUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-sparcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-x86Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm4USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm3USN-7094-1

Fixed in:1:2.5+dfsg-5ubuntu10.45USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.31USN-4467-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm2USN-7094-1

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-x86-microvmUbuntu

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

qemu-system-x86-xenUbuntu

Fixed in:1:4.2-3ubuntu6.4USN-4467-1

Fixed in:1:4.2-3ubuntu6.30USN-7094-1

Fixed in:1:6.2+dfsg-2ubuntu6.24USN-7094-1

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

qemu-system-xenUbuntu

Fixed in:1:8.2.2+ds-0ubuntu1.4USN-7094-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

2.41%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory5

Other references1

git.qemu.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.